Year 12s: what will be the first way you research your future options? >>

STEP Prep Thread 2016 (Mark. II)

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Reply 1260

math42

lol resolution not great there, try again

(I guess they will technically be parts of circles due to the sign concerns)

(edited 7 years ago)

Reply 1261

IrrationalRoot

Original post by drandy76

Forgot the holes but I think I put notes adjacent to each graph stating where the discontinuities were

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Should be good enough :smile:

Reply 1262

Duke Glacia

Original post by IrrationalRoot

Should be good enough :smile:

ur opinions on this paper ?

Reply 1263

jjsnyder

Did anyone do 8? That was a beautiful question
EDIT: My favourite of all my questions actually

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Reply 1264

drandy76

Original post by jjsnyder

Did anyone do 8? That was a beautiful question
EDIT: My favourite of all my questions actually

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My favourite was q7, if I did it correctly at least, if not q8 or q1 were nice too imo

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Reply 1265

johnthedog

did anyone get to the point where they had 301^2 - 900 in question 1 and had to find two factors?

Reply 1266

smartalan73

Original post by 1 8 13 20 42

lol resolution not great there, try again

(I guess they will technically be parts of circles due to the sign concerns)

ah i got as far f(x)= and didn't really know what to do next so just left it like that. Thats probably why I didn't have a clue what to put when they asked you to state what k meant at the end.

Reply 1267

JackHKeynes

Original post by johnthedog

did anyone get to the point where they had 301^2 - 900 in question 1 and had to find two factors?

It's the difference of two squares.

Reply 1268

jjsnyder

Original post by nitromeguy

For question 10, was lambda = 2+root5, e = root5 - 2? I wasn't entirely confident on this one

Just redid Q10, got 2+root5 again for lambda, perhaps 3 of my friends all got the same but wrong answer, maybe there is a popular mistake but I can't spot one!

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Reply 1269

smartalan73

Anyone do question 12 and just get the answer 1/2 for everything?

Reply 1270

student0042

Original post by jjsnyder

Did anyone do 8? That was a beautiful question
EDIT: My favourite of all my questions actually

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I did, it was my favourite too! :biggrin:

Reply 1271

jjsnyder

Original post by drandy76

My favourite was q7, if I did it correctly at least, if not q8 or q1 were nice too imo

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I didn't really like Q1, it was quite dull and the bulk of it was just expanding things (unless there is a trick I missed?) Whereas the end result in Q8 was very nice imo

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Reply 1272

johnthedog

Original post by jackhkeynes

it's the difference of two squares.

oh for **** ******** ****** ************ sake

Reply 1273

jjsnyder

Q13 is the one that I am slightly dubious about, I worked backwards from the answer for the second part, did anyone get a full on this? If so what was the answer to 'Write down the probability that the second email is delivered after time t'

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Reply 1274

smartalan73

Original post by jjsnyder

Just redid Q10, got 2+root5 again for lambda, perhaps 3 of my friends all got the same but wrong answer, maybe there is a popular mistake but I can't spot one!

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What did your friends actually get cos I was quite happy when i got e to be a value 0<e<1/3 i mean i thought that was quite a small margin?

Reply 1275

drandy76

Original post by jjsnyder

I didn't really like Q1, it was quite dull and the bulk of it was just expanding things (unless there is a trick I missed?) Whereas the end result in Q8 was very nice imo

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Nah I did it the same way too, it was just a nice relaxing way to start the paper

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Reply 1276

jjsnyder

Original post by smartalan73

What did your friends actually get cos I was quite happy when i got e to be a value 0<e<1/3 i mean i thought that was quite a small margin?

Think they got 2+root3 for lambda, but I can't remember really. I just assumed I was wrong because 3 of them had got the same answer.

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Reply 1277

Duke Glacia

Original post by jjsnyder

Think they got 2+root3 for lambda, but I can't remember really. I just assumed I was wrong because 3 of them had got the same answer.

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but 2+rt5 is the correct ans innit ?

Reply 1278

jjsnyder

Original post by drandy76

Nah I did it the same way too, it was just a nice relaxing way to start the paper

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It was my last question actually, I attempted it first and ended up not being able to expand (1+X)^4 :getscoat: came back to it at the end and got it though.

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